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Gas condensing centre CGW-2

ComfortLine gas condensing centre 

Wall mounted gas condensing centre, comprising a gas condensing boiler with a stainless steel DHW heat exchanger and a stainless steel stratification cylinder in modular design.

CGW-2100L
CGW-2120L
CGW-2140L

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Overview of benefits

Wall mounted gas condensing centre comprising a wall mounted gas condensing boiler with stainless steel DHW heat exchanger and stainless steel DHW stratification cylinder in a modular design

Integral and convenient DHW heating – better than a DHW cylinder with an internal indirect coil of 100, 120 or 140 l capacity

DHW turbo with a stainless steel routing and distribution system for hot and cold water ensures quiet, radial water distribution and excellent DHW output (European patent pending)

The CGW-2-14/100L can fill a bath tub with around 140 l of water at 40°C in 10 minutes

High savings on operating costs through efficient DHW heating and innovative insulation technology with integral annular gap system (utility model protection)

Controlled cylinder heating for optimum energy efficiency through the effective utilisation of condensing technology (European patent granted)

Gas condensing centre is fully wired and ready to connect to the water system

Specifications

Model type
CGW-14/100L
CGW-20/120L
CGW-24/140L
Energy efficiency class
Central heating energy efficiency class
A
A
A
Energy efficiency class, DHW heating
A
A
A
General data
Rated heating output at 80/60°C
kW
13.5
18.9/22.2
23.8/27.1
Rated heating output at 50/30°C
kW
15.2
20.4
25.8
Rated heat input
kW
14
19.6/23.0
24.6/28.0
Lowest heating output (modulating)
At 80/60°C
kW
1.8/4.6
3.8/6.8
4.8/6.8
At 50/30°C
kW
2.1/5.4
4.4/7.4
5.6/7.4
Lowest heat input (modulating)
kW
1.9/4.9
3.9/6.9
4.9/6.9
Heating flow connection
Thread
¾“ (DN 20)
¾“ (DN 20)
¾“ (DN 20)
Heating return connection
Thread
¾“ (DN 20)
¾“ (DN 20)
¾“ (DN 20)
Cold water connection / DHW circulation
Thread
½“
½“
½“
Cold water connection
Thread
¾“
¾“
¾“
Gas connection
R
½“
½“
½“
Balanced flue connection
mm
60/100
60/100
60/100
Dimensions
Depth
mm
378
378
378
Width
mm
800
800
800
Height
mm
790
790
790
Total weight
kg
54(35+19)
54(35+19)
54(35+19)
Balanced flue
Type
B23P, B33P, C13(x), C33(x), C43(x), C53(x)
B23P, B33P, C13(x), C33(x), C43(x), C53(x)
B23P, B33P, C13(x), C33(x), C43(x), C53(x)
Gas category
II2N3P
II2N3P
II2N3P
Gas connection value
Natural gas E/H (net cv = 9.5 kWh/m³ = 34.2 MJ/m³)
m³/h
1.44
2.06/2.42
2.52/2.95
Natural gas LL (net cv = 8.6 kWh/m³ = 31.0 MJ/m³)
m³/h
1.59
2.28/2.67
2.79/3.25
LPG P (net cv = 12.8 kWh/m³ = 46.1 MJ/m³)
kg/h
1.07
1.53/1.80
1.87/2.19
Gas supply pressure
Natural gas (permissible min./max.)
mbar
20(17-25)
20(17-25)
20(17-25)
LPG (permissible min./max.)
mbar
50(42.5-57.5)
50(42.5-57.5)
50(42.5-57.5)
Standard seasonal efficiency [to DIN] at 40/30°C (net cv/gross cv)
%
110/99
110/99
110/99
Standard seasonal efficiency at 75/60°C (net cv/gross cv)
%
107/96
107/96
107/96
Efficiency
At rated load at 80/60°C (net cv/gross cv)
%
98/88
98/88
98/88
At 30% partial load and TR = 30°C (net cv/gross cv)
%
108/97
108/97
108/97
Flow temperature, factory setting
°C
75
75
75
Flow temperature up to approx.
°C
90
90
90
Max. total pressure
bar
3
3
3
High-efficiency pump (EEI < 0.23)
600 l/h pump rate (14 kW at Δt = 20 K)
mbar
550
550
550
860 l/h pump rate (20 kW at Δt = 20 K)
mbar
-
430
430
1030 l/h pump rate (24 kW at Δt = 20 K)
mbar
-
-
280
Max. permissible total pressure, DHW
bar
10
10
10
DHW temperature range (adjustable)
°C
-
45-65
45-65
DHW capacity of heating water heat exchanger
litres
1.3
1.3
1.3
Nominal capacity of stratification cylinder / equivalent nominal capacity
litres
44/100
44/120
44/140
Spec. water throughput “D” at ΔT = 30 K
l/min
14.3
18
20
Continuous DHW output
l/h (kW)
366 (14.6)
560 (23.1)
684 (27.8)
Performance factor to DIN 4708
NL
0.8
1.1
1.5
DHW output
l/10 min
115
150
171
Standby heat loss to EN 12897
kWh/24 h
0.8
0.8
0.8
Corrosion protection, DHW heat exchanger / cylinder
Stainless steel
Stainless steel
Stainless steel
Expansion vessel, total capacity
Litre
10
10
10
Expansion vessel, pre-charge pressure
bar
0.75-0.95
0.75-0.95
0.75-0.95
Flue gas temperature 80/60-50/30 at Qmax
°C
62-45
70-50
76-50
Flue gas temperature 80/60-50/30 at Qmin
°C
30-25
30-25
33-27
Flue gas mass flow
at Qmax
g/s
6.2
8.8/10.7
10.9/13.0
bwi Qmin
g/s
0.9
1.8
2.3
Available gas fan draught
at Qmax
Pa
125
135
180
at Qmin
Pa
10
14
17
Flue gas category
G52
G52
G52
NOx class
5
5
5
Amount of condensate at 50/30°C
l/h
approx. 1.4
approx. 2.0
approx. 2.4
Condensate pH value
approx. 4.0
approx. 4.0
approx. 4.0
Power consumption on standby
W
3
3
3
Maximum power consumption
W
17-45/93
17-51/110
17-62/135
IP rating
IP
IP X4D
IP X4D
IP X4D
Electrical connection/fuse protection
230 V / 50 Hz / 16 A/B
230 V / 50 Hz / 16 A/B
230 V / 50 Hz / 16 A/B

Specifications

  • CGW-14/100L

  • CGW-20/120L

  • CGW-24/140L

    Energy efficiency class
    Central heating energy efficiency class
    A
    A
    A
    Energy efficiency class, DHW heating
    A
    A
    A
    General data
    Rated heating output at 80/60°C (kW)
    13.5
    18.9/22.2
    23.8/27.1
    Rated heating output at 50/30°C (kW)
    15.2
    20.4
    25.8
    Rated heat input (kW)
    14
    19.6/23.0
    24.6/28.0
    Lowest heating output (modulating)
    At 80/60°C (kW)
    1.8/4.6
    3.8/6.8
    4.8/6.8
    At 50/30°C (kW)
    2.1/5.4
    4.4/7.4
    5.6/7.4
    Lowest heat input (modulating) (kW)
    1.9/4.9
    3.9/6.9
    4.9/6.9
    Heating flow connection (Thread)
    ¾“ (DN 20)
    ¾“ (DN 20)
    ¾“ (DN 20)
    Heating return connection (Thread)
    ¾“ (DN 20)
    ¾“ (DN 20)
    ¾“ (DN 20)
    Cold water connection / DHW circulation (Thread)
    ½“
    ½“
    ½“
    Cold water connection (Thread)
    ¾“
    ¾“
    ¾“
    Gas connection (R)
    ½“
    ½“
    ½“
    Balanced flue connection (mm)
    60/100
    60/100
    60/100
    Dimensions
    Depth (mm)
    378
    378
    378
    Width (mm)
    800
    800
    800
    Height (mm)
    790
    790
    790
    Total weight (kg)
    54(35+19)
    54(35+19)
    54(35+19)
    Balanced flue (Type)
    B23P, B33P, C13(x), C33(x), C43(x), C53(x)
    B23P, B33P, C13(x), C33(x), C43(x), C53(x)
    B23P, B33P, C13(x), C33(x), C43(x), C53(x)
    Gas category
    II2N3P
    II2N3P
    II2N3P
    Gas connection value
    Natural gas E/H (net cv = 9.5 kWh/m³ = 34.2 MJ/m³) (m³/h)
    1.44
    2.06/2.42
    2.52/2.95
    Natural gas LL (net cv = 8.6 kWh/m³ = 31.0 MJ/m³) (m³/h)
    1.59
    2.28/2.67
    2.79/3.25
    LPG P (net cv = 12.8 kWh/m³ = 46.1 MJ/m³) (kg/h)
    1.07
    1.53/1.80
    1.87/2.19
    Gas supply pressure
    Natural gas (permissible min./max.) (mbar)
    20(17-25)
    20(17-25)
    20(17-25)
    LPG (permissible min./max.) (mbar)
    50(42.5-57.5)
    50(42.5-57.5)
    50(42.5-57.5)
    Standard seasonal efficiency [to DIN] at 40/30°C (net cv/gross cv) (%)
    110/99
    110/99
    110/99
    Standard seasonal efficiency at 75/60°C (net cv/gross cv) (%)
    107/96
    107/96
    107/96
    Efficiency
    At rated load at 80/60°C (net cv/gross cv) (%)
    98/88
    98/88
    98/88
    At 30% partial load and TR = 30°C (net cv/gross cv) (%)
    108/97
    108/97
    108/97
    Flow temperature, factory setting (°C)
    75
    75
    75
    Flow temperature up to approx. (°C)
    90
    90
    90
    Max. total pressure (bar)
    3
    3
    3
    High-efficiency pump (EEI < 0.23)
    600 l/h pump rate (14 kW at Δt = 20 K) (mbar)
    550
    550
    550
    860 l/h pump rate (20 kW at Δt = 20 K) (mbar)
    -
    430
    430
    1030 l/h pump rate (24 kW at Δt = 20 K) (mbar)
    -
    -
    280
    Max. permissible total pressure, DHW (bar)
    10
    10
    10
    DHW temperature range (adjustable) (°C)
    -
    45-65
    45-65
    DHW capacity of heating water heat exchanger (litres)
    1.3
    1.3
    1.3
    Nominal capacity of stratification cylinder / equivalent nominal capacity (litres)
    44/100
    44/120
    44/140
    Spec. water throughput “D” at ΔT = 30 K (l/min)
    14.3
    18
    20
    Continuous DHW output (l/h (kW))
    366 (14.6)
    560 (23.1)
    684 (27.8)
    Performance factor to DIN 4708 (NL)
    0.8
    1.1
    1.5
    DHW output (l/10 min)
    115
    150
    171
    Standby heat loss to EN 12897 (kWh/24 h)
    0.8
    0.8
    0.8
    Corrosion protection, DHW heat exchanger / cylinder
    Stainless steel
    Stainless steel
    Stainless steel
    Expansion vessel, total capacity (Litre)
    10
    10
    10
    Expansion vessel, pre-charge pressure (bar)
    0.75-0.95
    0.75-0.95
    0.75-0.95
    Flue gas temperature 80/60-50/30 at Qmax (°C)
    62-45
    70-50
    76-50
    Flue gas temperature 80/60-50/30 at Qmin (°C)
    30-25
    30-25
    33-27
    Flue gas mass flow
    at Qmax (g/s)
    6.2
    8.8/10.7
    10.9/13.0
    bwi Qmin (g/s)
    0.9
    1.8
    2.3
    Available gas fan draught
    at Qmax (Pa)
    125
    135
    180
    at Qmin (Pa)
    10
    14
    17
    Flue gas category
    G52
    G52
    G52
    NOx class
    5
    5
    5
    Amount of condensate at 50/30°C (l/h)
    approx. 1.4
    approx. 2.0
    approx. 2.4
    Condensate pH value
    approx. 4.0
    approx. 4.0
    approx. 4.0
    Power consumption on standby (W)
    3
    3
    3
    Maximum power consumption (W)
    17-45/93
    17-51/110
    17-62/135
    IP rating (IP)
    IP X4D
    IP X4D
    IP X4D
    Electrical connection/fuse protection
    230 V / 50 Hz / 16 A/B
    230 V / 50 Hz / 16 A/B
    230 V / 50 Hz / 16 A/B
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